大學英語作文：Where do dreams come from?想知道夢的成因嗎?

　　Most people often dream at night. When they wake in the morning they say to themselves, "What a strange dream I had! I wonder what made me dream that." Sometimes dreams are frightening.Sometimes, in dreams, wishes come true.At other times we are troubled by strange dreams in which the world seems to have been turned upside-down1and nothing makes sense.

　　大多數人夜晚經常做夢，早上醒來便自語：“做了個好奇怪的夢!不知道怎么會夢見這個。”有時候夢令人毛骨悚然，有時候夢卻使愿望成真，還有的時候怪夢會來打擾我們，夢里的世界好像亂七八糟，不知所云。